#!/usr/bin/env python

# -*- coding: utf-8 -*-

# Author: Milan Nikolic <gen2brain@gmail.com>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

import os
import sys

try:
    import dbus
    import dbus._version
    from dbus.mainloop.glib import DBusGMainLoop
    assert dbus.version >= (0, 80, 0)
except ImportError, AssertionError:
    sys.stderr.write("This program needs dbus-python 0.80.0 or later\nExiting\n")
    sys.exit(1)

try:
    if os.path.isdir(os.path.join(".","src")) and os.path.isfile(os.path.join(".","setup.py")):
        from src import main
    else:
        from volti import main
except ImportError:
    sys.stderr.write("Can't import volti main module\nExiting\n")
    sys.exit(1)

if __name__ == "__main__":
    try:
        bus = dbus.SessionBus(mainloop = DBusGMainLoop())
    except dbus.exceptions.DBusException:
        sys.stderr.write("Couldn't connect to dbus.\nExiting\n")
        sys.exit(1)
    if bus.request_name("com.google.code.Volti") != dbus.bus.REQUEST_NAME_REPLY_PRIMARY_OWNER:
        sys.stderr.write("Only one instance is allowed\nExiting\n")
        sys.exit(1)
    else:
        volti = main.VolumeTray()
        volti.main()
